Movses Aslanyan
91afea92a1
All seven services (gateway, ledger, fraud, sanctions, insights, notifier, audit), db/schema.sql plus optional_indexes.sql, scripts/seed.py and smoke.py, the gateway-served frontend, and docker-compose.yml. Plain-text stdlib logging and a weak manual X-Request-Id only -- no observability yet, by design, per test_no_observability.py. Implements all 13 named chaos-flag pathologies from docs/PATHOLOGIES.md behind Redis-backed runtime flags. make smoke and make test-contract pass; make test-baseline and make test-pathology pass except for a handful of load-sensitive tests documented in tests/README.md rather than papered over.
19 lines
672 B
Python
19 lines
672 B
Python
import random
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def category_weight(category_id: int | None) -> float:
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"""A fake but deterministic-ish stand-in for merchant_categories.risk_weight
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(fraud has no direct DB access -- Redis only, per phase-0-base-project-spec.md §4).
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The business logic does not need to be correct, only to produce a plausible
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spread of scores."""
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if category_id is None:
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return 0.3
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return 0.01 + (category_id % 45) / 44 * 0.94
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def score(category_id: int | None, matched: bool) -> float:
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base = category_weight(category_id) * random.uniform(0.05, 0.3)
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if matched:
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return min(1.0, base + random.uniform(0.55, 0.9))
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return min(1.0, base)
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